Base Station Band Sharing with Adaptive Channel Occupancy

The patent implements dynamic adjustment of channel occupancy time (COT) and contention period lengths based on real-time detection of other system activity. The base station continuously monitors the shared band during contention periods and adaptively modifies transmission parameters to ensure fair access between LTE-U and Wi-Fi systems, transforming static LBT schemes into dynamic adaptive mechanisms.

The patent employs feedback mechanisms where the base station detects signals from other systems (like Wi-Fi) during contention periods and uses this information to adjust its transmission behavior. The energy detection results feed back into the decision-making process for initiating transmissions and determining COT length, creating a closed-loop system that responds to channel conditions and ensures fair coexistence.

The patent segments the monitoring process into distinct operational phases: contention periods where active signal detection occurs, and channel occupancy periods where transmission takes place. By dividing the operation into these structured segments with clear entry and exit conditions, the system reduces continuous monitoring complexity while maintaining fairness through periodic checks at phase boundaries.

The patent implements periodic monitoring during contention periods rather than continuous monitoring. The base station performs energy detection at regular intervals defined by the contention period length, reducing processing overhead while maintaining adequate detection capability. This periodic approach balances fairness requirements with computational efficiency.